{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "258307",
    "entityType": "User",
    "nonce": "0x5caf09ab80720946a6840eeb8573dd938ecab8cb0123d17dc405e38bcc6cae6d",
    "signature": "0x1ca8d9b119011b3d267603090e31746a3a09e798338ada74ad479ff13c154ca57d2484cb8c26ef2cc2172fc8a7c75c723b366d8be5d8a1dcecfe2e5bf56cd7d81c",
    "signer": "0x742Fff9be20F80Ce7285c8Ab12B9018Ef3Cf14F0",
    "userId": "111467392"
  }
}